/* * Ceph - scalable distributed file system * * Copyright (C) 2004-2010 Sage Weil <[email protected]> * * This is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License version 2.1, as published by the Free Software * Foundation. See file COPYING. * */ #ifndef CEPH_RBD_TYPES_H #define CEPH_RBD_TYPES_H #include <linux/types.h> /* For format version 2, rbd image 'foo' consists of objects * rbd_id.foo - id of image * rbd_header.<id> - image metadata * rbd_object_map.<id> - optional image object map * rbd_data.<id>.0000000000000000 * rbd_data.<id>.0000000000000001 * ... - data * Clients do not access header data directly in rbd format 2. */ #define RBD_HEADER_PREFIX … #define RBD_OBJECT_MAP_PREFIX … #define RBD_ID_PREFIX … #define RBD_V2_DATA_FORMAT … #define RBD_LOCK_NAME … #define RBD_LOCK_TAG … #define RBD_LOCK_COOKIE_PREFIX … enum rbd_notify_op { … }; #define OBJECT_NONEXISTENT … #define OBJECT_EXISTS … #define OBJECT_PENDING … #define OBJECT_EXISTS_CLEAN … #define RBD_FLAG_OBJECT_MAP_INVALID … #define RBD_FLAG_FAST_DIFF_INVALID … /* * For format version 1, rbd image 'foo' consists of objects * foo.rbd - image metadata * rb.<idhi>.<idlo>.<extra>.000000000000 * rb.<idhi>.<idlo>.<extra>.000000000001 * ... - data * There is no notion of a persistent image id in rbd format 1. */ #define RBD_SUFFIX … #define RBD_V1_DATA_FORMAT … #define RBD_DIRECTORY … #define RBD_INFO … #define RBD_DEFAULT_OBJ_ORDER … #define RBD_MIN_OBJ_ORDER … #define RBD_MAX_OBJ_ORDER … #define RBD_HEADER_TEXT … #define RBD_HEADER_SIGNATURE … #define RBD_HEADER_VERSION … struct rbd_image_snap_ondisk { … } __attribute__((packed)); struct rbd_image_header_ondisk { … } __attribute__((packed)); #endif
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